WO2004090306A8 - Piston - Google Patents

Piston

Info

Publication number
WO2004090306A8
WO2004090306A8 PCT/GB2004/001483 GB2004001483W WO2004090306A8 WO 2004090306 A8 WO2004090306 A8 WO 2004090306A8 GB 2004001483 W GB2004001483 W GB 2004001483W WO 2004090306 A8 WO2004090306 A8 WO 2004090306A8
Authority
WO
WIPO (PCT)
Prior art keywords
piston
spring means
crown
carrier
connecting rod
Prior art date
Application number
PCT/GB2004/001483
Other languages
French (fr)
Other versions
WO2004090306A1 (en
Inventor
George Frederic Galvin
Original Assignee
George Frederic Galvin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by George Frederic Galvin filed Critical George Frederic Galvin
Priority to US10/552,981 priority Critical patent/US7334554B2/en
Priority to JP2006506092A priority patent/JP2006522895A/en
Priority to AU2004227157A priority patent/AU2004227157B2/en
Priority to CA002520076A priority patent/CA2520076A1/en
Priority to DE602004009908T priority patent/DE602004009908T2/en
Priority to EP04725718A priority patent/EP1616090B1/en
Publication of WO2004090306A1 publication Critical patent/WO2004090306A1/en
Publication of WO2004090306A8 publication Critical patent/WO2004090306A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/044—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of an adjustable piston length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/36—Engines with parts of combustion- or working-chamber walls resiliently yielding under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/36—Engines with parts of combustion- or working-chamber walls resiliently yielding under pressure
    • F02B75/38—Reciprocating - piston engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

A piston (1) incorporates spring means (8) acting, in use, between the piston and an associated connecting rod (4) so as to bias the connecting rod away from the crown (2) of the piston. The spring means (8) is constituted by a pair of disc springs (9) whose circumferential edge portions are supported and separated by a substantially annular support member (10, 11), the spring means being located substantially in the region of the piston crown (2). A carrier (5) is positioned within the piston (1), the carrier being slidably mounted within the piston for axial movement relative thereto, and being connected to the connecting rod (4) in such a manner that the spring means (8) permits the crown (2) to move axially relative to the carrier (5).
PCT/GB2004/001483 2003-04-12 2004-04-05 Piston WO2004090306A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/552,981 US7334554B2 (en) 2003-04-12 2004-04-05 Piston
JP2006506092A JP2006522895A (en) 2003-04-12 2004-04-05 piston
AU2004227157A AU2004227157B2 (en) 2003-04-12 2004-04-05 Piston
CA002520076A CA2520076A1 (en) 2003-04-12 2004-04-05 Piston
DE602004009908T DE602004009908T2 (en) 2003-04-12 2004-04-05 PISTON
EP04725718A EP1616090B1 (en) 2003-04-12 2004-04-05 Piston

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0308524.8A GB0308524D0 (en) 2003-04-12 2003-04-12 Piston
GB0308524.8 2003-04-12

Publications (2)

Publication Number Publication Date
WO2004090306A1 WO2004090306A1 (en) 2004-10-21
WO2004090306A8 true WO2004090306A8 (en) 2006-12-28

Family

ID=9956705

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/001483 WO2004090306A1 (en) 2003-04-12 2004-04-05 Piston

Country Status (10)

Country Link
US (1) US7334554B2 (en)
EP (1) EP1616090B1 (en)
JP (1) JP2006522895A (en)
AT (1) ATE377700T1 (en)
AU (1) AU2004227157B2 (en)
CA (1) CA2520076A1 (en)
DE (1) DE602004009908T2 (en)
ES (1) ES2295849T3 (en)
GB (1) GB0308524D0 (en)
WO (1) WO2004090306A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2431451A (en) * 2005-10-20 2007-04-25 George Frederic Galvin Piston incorporating a disc spring made of a superelastic material
FR2944057A1 (en) * 2009-04-06 2010-10-08 Peugeot Citroen Automobiles Sa Variable length piston for internal combustion engine of electric hybrid vehicle, has variable stiffness type spring comprising nonlinear deformation behavior when force is applied, where force ranges between null force and driving force
JP5273290B2 (en) 2010-03-02 2013-08-28 トヨタ自動車株式会社 Combustion pressure control device
CN103270283B (en) * 2010-12-27 2016-06-01 三菱自动车工业株式会社 Piston
CN104838124A (en) * 2012-09-26 2015-08-12 乔治·弗里德里克·高尔文 Piston
CN104179591B (en) * 2014-08-12 2016-08-24 中南大学 A kind of piston structure realizing variable compression ratio of engines
TWI663332B (en) * 2017-08-31 2019-06-21 研能科技股份有限公司 Gas transmitting device
CN108757207A (en) * 2018-06-06 2018-11-06 大丰市勇拓机械厂 A kind of high-precision connecting rod centering positioning piston
DE102018115727B3 (en) * 2018-06-29 2019-11-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Supporting arrangement for an eccentric member of an adjustment arrangement and adjusting arrangement

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323742A (en) 1942-03-19 1943-07-06 Philip S Webster Internal combustion engine piston
DE1813140A1 (en) 1968-12-03 1970-06-18 Horst Gehrke Drive mechanism for machines and devices with piston movement
US4031868A (en) 1975-09-10 1977-06-28 Teledyne Industries, Inc. Variable compression ratio piston
US4016841A (en) * 1975-09-10 1977-04-12 Teledyne Industries, Inc. Variable compression ratio piston
US4137873A (en) 1977-10-11 1979-02-06 Caswell Sr Dwight A Variable compression ratio piston
DE3021093A1 (en) 1980-06-04 1981-12-10 Klöckner-Humboldt-Deutz AG, 5000 Köln Variable compression piston for IC engine - has crown supported by oil chamber controlled by spring-loaded valves
US4469055A (en) 1980-06-23 1984-09-04 Caswell Dwight A Controlled variable compression ratio piston for an internal combustion engine
DE3139686A1 (en) 1981-10-06 1983-04-21 Andreas 7300 Esslingen Derer Flexible connection between a piston and a connecting rod
JPS58175145U (en) * 1982-05-20 1983-11-22 日産自動車株式会社 internal combustion engine piston
DE3612842A1 (en) * 1986-04-16 1987-10-22 Bayerische Motoren Werke Ag Internal combustion engine, especially reciprocating piston internal combustion engine, with compression space adjustable in operation
JPH0617665A (en) * 1991-03-28 1994-01-25 Masayuki Kiyono Piston keeping combustion pressure constant
AU5160496A (en) 1995-04-25 1996-11-18 Ovidiu Petru Popadiuc Method of operating an internal combustion engine during combustion process
US5769042A (en) 1995-04-26 1998-06-23 Popadiuc; Ovidiu Petru Method of operating an internal combustion engine during a combustion process
GB9620227D0 (en) 1996-09-27 1996-11-13 Galvin George F Energy storage device
US5755192A (en) * 1997-01-16 1998-05-26 Ford Global Technologies, Inc. Variable compression ratio piston
US5970944A (en) 1997-01-21 1999-10-26 Isuzu Ceramics Research Institute Co., Ltd. Combustion chamber structure in engines
GB9913702D0 (en) 1999-06-11 1999-08-11 Galvin George F Piston and connecting rod assembly
GB0007726D0 (en) 2000-03-31 2000-05-17 Galvin George F Piston

Also Published As

Publication number Publication date
US20060243240A1 (en) 2006-11-02
ES2295849T3 (en) 2008-04-16
GB0308524D0 (en) 2003-05-21
JP2006522895A (en) 2006-10-05
EP1616090A1 (en) 2006-01-18
US7334554B2 (en) 2008-02-26
WO2004090306A1 (en) 2004-10-21
CA2520076A1 (en) 2004-10-21
AU2004227157B2 (en) 2009-10-08
DE602004009908D1 (en) 2007-12-20
DE602004009908T2 (en) 2008-08-28
ATE377700T1 (en) 2007-11-15
AU2004227157A1 (en) 2004-10-21
EP1616090B1 (en) 2007-11-07

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